If you can get to a command prompt (run as an administrator) you could try running sfc /scannow. SFC is the system file checker. Try it and let me know if that helps. If you can get to a command prompt (run as an administrator) you could try running sfc /scannow. SFC is the system file checker. Try

Original title: The WORST problem(s) ever, Can you fix them? I have been having so many problems. -Windows installer will not start. Error 87, parameters are incorrect….

The Error 87 indicates that the files have already been removed. … If you do the following at the same command prompt: dism /online /get-packages > c:temppackages.txt. and then open the c:temppackages.txt (you may need to create a C: …